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6895 Commits

Author SHA1 Message Date
Evan Cheng
07dcde8ba2 Use a spilled free callee-saved register as scratch register. 
llvm-svn: 34785
 2007-03-01 08:57:52 +00:00
Evan Cheng
8d3d4155e5 - Track which callee-saved registers are spilled. 
- Some code clean up.

llvm-svn: 34783
 2007-03-01 08:26:31 +00:00
Evan Cheng
f771a323c2 Switch from std::vector<bool> to BitVector. 
llvm-svn: 34781
 2007-03-01 07:52:44 +00:00
Bill Wendling
2aabf75e82 Get rid of verboten <iostream> include. 
llvm-svn: 34777
 2007-03-01 06:05:39 +00:00
Dale Johannesen
f38e3d7085 Changes requested in review of last pass. Also pulled isThumb into a 
member, instead of resetting in every function that uses it.

llvm-svn: 34764
 2007-02-28 23:20:38 +00:00
Evan Cheng
5dc0ece7cb Doh. ARM::PC is obvious a reserved register. 
llvm-svn: 34763
 2007-02-28 23:12:34 +00:00
Dale Johannesen
5ec68034ee Add intelligence about where to break large blocks. 
llvm-svn: 34755
 2007-02-28 18:41:23 +00:00
Chris Lattner
bcc44762bc remove dead option 
llvm-svn: 34754
 2007-02-28 18:39:53 +00:00
Chris Lattner
d8c7e8999e bugfix: fastcall does not require the first two params to be marked 'inreg', 
they always get registers.

llvm-svn: 34748
 2007-02-28 18:35:11 +00:00
Nate Begeman
2288ec3331 More Mach-O writer improvements. 
llvm-svn: 34740
 2007-02-28 07:40:50 +00:00
Chris Lattner
a66d550298 use high-level functions in CCState 
llvm-svn: 34739
 2007-02-28 07:09:55 +00:00
Chris Lattner
3663b6e73a make use of helper functions in CCState for analyzing formals and calls. 
llvm-svn: 34737
 2007-02-28 07:00:42 +00:00
Chris Lattner
3762b44a0c switch LowerFastCCCallTo over to using the new fastcall description. 
llvm-svn: 34734
 2007-02-28 06:26:33 +00:00
Chris Lattner
a8dd712470 switch LowerFastCCArguments over to using the autogenerated Fastcall description. 
llvm-svn: 34733
 2007-02-28 06:21:19 +00:00
Chris Lattner
9a1f1c41b0 add new CC_X86_32_FastCall calling conv, which describes fastcall on win32. 
Factor out a CC_X86_32_Common convention, which is the part shared between
ccc, stdcall and fastcall

llvm-svn: 34732
 2007-02-28 06:20:01 +00:00
Chris Lattner
3b16744840 rearrange code 
llvm-svn: 34731
 2007-02-28 06:10:12 +00:00
Chris Lattner
023751c20b remove fastcc (not fastcall) support 
llvm-svn: 34730
 2007-02-28 06:05:16 +00:00
Chris Lattner
012066f78b switch LowerCCCArguments over to using autogenerated CC. 
llvm-svn: 34729
 2007-02-28 05:46:49 +00:00
Chris Lattner
6424f8e245 simplify sret handling 
llvm-svn: 34728
 2007-02-28 05:39:26 +00:00
Chris Lattner
76147834d6 switch LowerCCCCallTo over to using an autogenerated callingconv 
llvm-svn: 34727
 2007-02-28 05:31:48 +00:00
Chris Lattner
d663281088 rename stuff 
llvm-svn: 34726
 2007-02-28 05:30:29 +00:00
Chris Lattner
99f65b22c9 rename some CCActions, add CCIfInReg 
llvm-svn: 34725
 2007-02-28 05:29:33 +00:00
Chris Lattner
eef57fed6e switch return value passing and the x86-64 calling convention information 
over to being autogenerated from the X86CallingConv.td file.

llvm-svn: 34722
 2007-02-28 04:55:35 +00:00
Chris Lattner
3eb95551d7 make subtarget references work. 
llvm-svn: 34721
 2007-02-28 04:51:41 +00:00
Evan Cheng
db591ecaa8 Make requiresRegisterScavenging determination on a per MachineFunction basis. 
llvm-svn: 34711
 2007-02-28 00:59:19 +00:00
Evan Cheng
cfb0f8cfc6 Temporary: make R12 available in ARM mode if RegScavenger is being used. 
llvm-svn: 34709
 2007-02-28 00:22:44 +00:00
Evan Cheng
fa23d8e51f Start making use of RegScavenger. 
llvm-svn: 34708
 2007-02-28 00:21:58 +00:00
Evan Cheng
116f97f2c7 PEI now passes a RegScavenger ptr to eliminateFrameIndex. 
llvm-svn: 34707
 2007-02-28 00:21:17 +00:00
Evan Cheng
4357509984 Minor tweak. Allocate r0 to r3 in reverse order, r3 is least likely to be livein to a function. 
llvm-svn: 34701
 2007-02-27 23:03:55 +00:00
Chris Lattner
da909a2df7 reenable generation of CC info 
llvm-svn: 34699
 2007-02-27 22:12:19 +00:00
Evan Cheng
b314459812 Back out previous commit temporarily. 
llvm-svn: 34694
 2007-02-27 21:47:22 +00:00
Evan Cheng
a19dd6f388 Let MRegisterInfo now owns RegScavenger; eliminateFrameIndex must preserve register kill info. 
llvm-svn: 34692
 2007-02-27 21:12:35 +00:00
Chris Lattner
0d05dc2523 implement CCMatchIfCC in terms of CCMatchIf 
llvm-svn: 34685
 2007-02-27 20:45:02 +00:00
Chris Lattner
4d29a90170 build cc info 
llvm-svn: 34684
 2007-02-27 20:44:31 +00:00
Chris Lattner
da49dee51d a note 
llvm-svn: 34670
 2007-02-27 17:21:09 +00:00
Nicolas Geoffray
a144ebf568 Fix parenthesis for BCTRL_{ELF|Macho} test. 
llvm-svn: 34668
 2007-02-27 13:10:41 +00:00
Nicolas Geoffray
a562e5c1c5 Differentiate between the MachO and the ELF ABI the CALL instruction. 
llvm-svn: 34667
 2007-02-27 13:01:19 +00:00
Jim Laskey
f5b5a3cf77 Duplicate use of LR, take 2. 
llvm-svn: 34666
 2007-02-27 11:55:45 +00:00
Chris Lattner
90c768b913 Add calling convention info 
llvm-svn: 34661
 2007-02-27 06:59:52 +00:00
Chris Lattner
9f0e5d8b03 move target independent calling convention stuff to TargetCallingConv.td 
llvm-svn: 34659
 2007-02-27 05:57:32 +00:00
Chris Lattner
2b737abea1 fill in some holes 
llvm-svn: 34658
 2007-02-27 05:51:05 +00:00
Chris Lattner
9117648533 switch x86-64 return value lowering over to using same mechanism as argument 
lowering uses.

llvm-svn: 34657
 2007-02-27 05:28:59 +00:00
Chris Lattner
11a1c2113c Minor refactoring of CC Lowering interfaces 
llvm-svn: 34656
 2007-02-27 05:13:54 +00:00
Chris Lattner
e34136f6d5 move CC Lowering stuff to its own public interface 
llvm-svn: 34655
 2007-02-27 04:43:02 +00:00
Chris Lattner
cac44e283d refactor x86-64 argument lowering yet again, this time eliminating templates, 
'clients', etc, and adding CCValAssign instead.

llvm-svn: 34654
 2007-02-27 04:18:15 +00:00
Evan Cheng
f54dbab209 Backing out Jim's LR spill changes. This was causing llvm-gcc bootstrapping 
to infinite loop:
PPCMachineFunctionInfo.h updated: 1.2 -> 1.3
PPCRegisterInfo.cpp updated: 1.110 -> 1.111
PPCRegisterInfo.h updated: 1.28 -> 1.29

llvm-svn: 34652
 2007-02-27 02:55:29 +00:00
Chris Lattner
d4cd3a31e6 always lower to RETFLAG, never leave it as just ret. 
llvm-svn: 34639
 2007-02-26 19:44:02 +00:00
Chris Lattner
656996aab8 fix attribution 
llvm-svn: 34637
 2007-02-26 18:56:07 +00:00
Chris Lattner
948965f809 Add a description of the X86-64 calling convention and the return 
conventions.  This doesn't do anything yet, but may in the future.

llvm-svn: 34636
 2007-02-26 18:17:14 +00:00
Chris Lattner
7165ee9b6b switch to smallvector 
llvm-svn: 34633
 2007-02-26 07:59:53 +00:00
Chris Lattner
3fe1132dcd initial hack at splitting the x86-64 calling convention info out from the 
mechanics that process it.  I'm still not happy with this, but it's a step
in the right direction.

llvm-svn: 34631
 2007-02-26 07:50:02 +00:00
Chris Lattner
d0c941c89e the truncate must always be done, it's only the assert that is conditional. 
llvm-svn: 34628
 2007-02-26 05:21:05 +00:00
Chris Lattner
decf97fae2 add an accessor. 
llvm-svn: 34625
 2007-02-26 04:01:25 +00:00
Chris Lattner
2e7125dc74 in X86-64 CCC, i8/i16 arguments are already properly zext/sext'd on input. 
Capture this so that downstream zext/sext's are optimized out.  This
compiles:
  int test(short X) { return (int)X; }

to:

_test:
        movl %edi, %eax
        ret

instead of:

_test:
        movswl %di, %eax
        ret


GCC produces this bizarre code:

_test:
        movw    %di, -12(%rsp)
        movswl  -12(%rsp),%eax
        ret

llvm-svn: 34623
 2007-02-26 03:18:56 +00:00
Chris Lattner
ad14e21b97 Fix an X86-64 abi bug. We now compile: 
void foo(short);
void bar(unsigned short A) {
  foo(A);
}

into:

_bar:
        subq $8, %rsp
        movswl %di, %edi
        call _foo
        addq $8, %rsp
        ret

instead of:

_bar:
        subq $8, %rsp
        call _foo
        addq $8, %rsp
        ret

Testcase here: test/CodeGen/X86/x86-64-shortint.ll

llvm-svn: 34615
 2007-02-25 23:10:46 +00:00
Chris Lattner
15c167cc61 fix CodeGen/X86/2007-02-25-FastCCStack.ll, a regression from my patch last 
night:  fastcc returns should only go in XMM0 if we have SSE2 or above.

llvm-svn: 34613
 2007-02-25 22:23:46 +00:00
Chris Lattner
796625a49d no really, this is the right patch 
llvm-svn: 34605
 2007-02-25 20:01:40 +00:00
Chris Lattner
49fc72110a always promote float varargs to double. 
llvm-svn: 34604
 2007-02-25 19:59:18 +00:00
Chris Lattner
b5ce97a83a one important bugfix: PPC32 didn't have both elf and macho support for 
external symbols and global addresses.  Add the missing ones.

one important workaround: PPCISD::CALL is matched by both PPCcall_ELF
and PPCcall_Macho, disable the _ELF patterns for now.

llvm-svn: 34601
 2007-02-25 19:20:53 +00:00
Dale Johannesen
f6f34ec2e0 cosmetic changes from review of last patch. obvious 
llvm-svn: 34598
 2007-02-25 18:31:31 +00:00
Chris Lattner
65ba08d627 fastcc functions that return double values now return them in xmm0 on x86-32. 
This implements CodeGen/X86/fp-stack-ret.ll:test[23]

llvm-svn: 34592
 2007-02-25 09:31:16 +00:00
Chris Lattner
e4ba88824d allow vectors to be passed to stdcall/fastcall functions 
llvm-svn: 34590
 2007-02-25 09:14:25 +00:00
Chris Lattner
fac0b30da0 move LowerRET into the 'Return Value Calling Convention Implementation' 
section of the file.

llvm-svn: 34589
 2007-02-25 09:12:39 +00:00
Chris Lattner
65d915a3b6 make all Lower*CallTo implementations use LowerCallResult to handle their 
result value stuff.  This eliminates a bunch of duplicated code and now
GetRetValueLocs is the sole place that decides where a value is returned.

llvm-svn: 34588
 2007-02-25 09:10:05 +00:00
Chris Lattner
423224a7b4 pass the calling convention into Lower*CallTo, instead of using ad-hoc flags. 
llvm-svn: 34587
 2007-02-25 09:06:15 +00:00
Chris Lattner
8fa75c3ae8 factor a bunch of code out of LowerCCCCallTo into a new LowerCallResult 
function.  This function now uses GetRetValueLocs to determine *where*
the result values are located and concerns itself with *how* to pull the
values out.

llvm-svn: 34586
 2007-02-25 08:59:22 +00:00
Chris Lattner
3bfbc23ccd move some code around, pass in calling conv, even though it is unused 
llvm-svn: 34585
 2007-02-25 08:29:00 +00:00
Chris Lattner
f119813ff4 simplify result value lowering by splitting the selection of *where* to return 
registers out from the logic of *how* to return them.

This changes X86-64 to mark EAX live out when returning a 32-bit value,
where before it marked RAX liveout.

llvm-svn: 34582
 2007-02-25 08:15:11 +00:00
Chris Lattner
bcce79717b make void-return not a special case 
llvm-svn: 34579
 2007-02-25 07:18:38 +00:00
Chris Lattner
d00fcb3277 eliminate a bunch more temporary vectors from X86 lowering. 
llvm-svn: 34578
 2007-02-25 07:10:00 +00:00
Chris Lattner
f7eeef816d eliminate temporary vectors created during X86 lowering. 
llvm-svn: 34577
 2007-02-25 06:40:16 +00:00
Chris Lattner
6f25082e67 remove std::vector's in RET lowering. 
llvm-svn: 34576
 2007-02-25 06:21:57 +00:00
Chris Lattner
041fb5bc67 implement support for the linux/ppc function call ABI. Patch by 
Nicolas Geoffray!

llvm-svn: 34574
 2007-02-25 05:34:32 +00:00
Chris Lattner
ed4920842f Add XLForm_1_ext template, patch by Nicolas Geoffray. 
llvm-svn: 34573
 2007-02-25 05:07:49 +00:00
Chris Lattner
42cfb7c452 Improve JIT support for linux/ppc: Patch by Nicolas Geoffray! 
llvm-svn: 34572
 2007-02-25 05:04:13 +00:00
Dale Johannesen
6e366a1006 remove crediting of Evan Cheng and me. 
llvm-svn: 34568
 2007-02-25 01:42:36 +00:00
Dale Johannesen
ccecc12da5 Removed WaterListOffset, inserted BBOffsets. Remove TODO item about this 
from README.
When no water available, use end of block if in range.  (More to do here.)

llvm-svn: 34563
 2007-02-25 00:47:03 +00:00
Bill Wendling
2c5f64532b PR1164: 
Generate local names with a "llvm_cbe_" prefix using the actual name of the
variable instead of a temporary name.

llvm-svn: 34540
 2007-02-23 22:45:08 +00:00
Lauro Ramos Venancio
19040a3f0d bugfix: SP wasn't updated for varargs when frame pointer was eliminated. 
llvm-svn: 34537
 2007-02-23 21:53:48 +00:00
Jim Laskey
704423b797 Don't spill LR as a callee saved register. 
llvm-svn: 34533
 2007-02-23 20:34:16 +00:00
Lauro Ramos Venancio
7c2f17b629 Fix stack alignment in functions with varargs. 
llvm-svn: 34532
 2007-02-23 20:32:57 +00:00
Dale Johannesen
544968d665 rewrite of constant islands 
llvm-svn: 34523
 2007-02-23 05:02:36 +00:00
Evan Cheng
2d4b1cb0ca Added -march=thumb; removed -enable-thumb. 
llvm-svn: 34521
 2007-02-23 03:14:31 +00:00
Evan Cheng
3ddb5d1018 80 col. violation. 
llvm-svn: 34520
 2007-02-23 03:03:16 +00:00
Anton Korobeynikov
b7350e191e External weak linkage is supported by recent binutils on mingw32. 
llvm-svn: 34519
 2007-02-23 01:58:50 +00:00
Evan Cheng
da51cf986a By default, spills kills the register being stored. 
llvm-svn: 34515
 2007-02-23 01:10:04 +00:00
Evan Cheng
bd3219f5bf Add option to turn on register scavenger; By default, spills kills the register being stored. 
llvm-svn: 34514
 2007-02-23 01:09:11 +00:00
Chris Lattner
f8d7232532 remove obsolete file 
llvm-svn: 34506
 2007-02-22 23:48:43 +00:00
Jim Laskey
b57ee1fc37 Simplify lowering and selection of exception ops. 
llvm-svn: 34488
 2007-02-22 14:56:36 +00:00
Jim Laskey
6a937ad320 Support to provide exception and selector registers. 
llvm-svn: 34482
 2007-02-21 22:54:50 +00:00
Jim Laskey
bce43df323 Add support for changes in DwarfWriter. 
llvm-svn: 34478
 2007-02-21 22:47:38 +00:00
Jim Laskey
d1e09aa74a Add TAI field for exception table section. 
llvm-svn: 34477
 2007-02-21 22:43:40 +00:00
Evan Cheng
0e7be3c4e0 ELF / PIC requires GOT be in the EBX register during calls via PLT GOT pointer. 
Add implicit uses of EBX to calls to ensure liveintervalanalysis does not treat
the GOT in EBX move as dead upon definition.
This should fix PR1207.

llvm-svn: 34470
 2007-02-21 21:18:14 +00:00
Dan Gohman
e24135a647 Fix typos in comments. 
llvm-svn: 34456
 2007-02-20 20:52:03 +00:00
Evan Cheng
a6399ed8d6 How the heck did I forget patterns for llvm.x86.sse2.cmp.sd? 
llvm-svn: 34434
 2007-02-20 00:39:09 +00:00
Reid Spencer
bd46f28da7 Simplify some code by moving variable declarations into the only block that 
uses them.

llvm-svn: 34432
 2007-02-19 23:30:10 +00:00
Reid Spencer
78e1ec0122 Implement support for non-standard integer bit widths of any size. The 
rules alignment is to pick the alignment that corresponds to the smallest
specified alignment that is larger than the bit width of the type or the
largest specified integer alignment if none are larger than the bitwidth
of the type. For the byte size, the size returned is the next larger
multiple of the alignment for that type (using the above rule). This patch
also changes bit widths from "short" to "uint32_t" to ensure there are
enough bits to specify any bit width that LLVM can handle (currently 2^23);
16-bits isn't enough.

llvm-svn: 34431
 2007-02-19 22:35:00 +00:00
Evan Cheng
e4ab9c032b Re-apply my liveintervalanalysis changes. Now with PR1207 fixes. 
llvm-svn: 34428
 2007-02-19 21:49:54 +00:00
Reid Spencer
b27fcf3482 For PR1207: 
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.

llvm-svn: 34399
 2007-02-19 03:20:00 +00:00
Evan Cheng
8c2508f1ac Added getReservedRegs(). 
llvm-svn: 34376
 2007-02-17 11:06:00 +00:00
Chris Lattner
e3eae5e265 Fix ixaddrs as well, allowing ppc64 to compile to: 
_test2:
        li r2, 0
        lis r3, 1
        std r2, 9024(r3)
        blr

instead of:

_test2:
        lis r2, 1
        li r3, 0
        ori r2, r2, 9024
        std r3, 0(r2)
        blr

This implements CodeGen/PowerPC/LargeAbsoluteAddr.ll:test2

llvm-svn: 34373
 2007-02-17 06:57:26 +00:00
Chris Lattner
50411d5be7 Compile test/CodeGen/PowerPC/LargeAbsoluteAddr.ll to: 
_test:
        lis r2, 743
        li r3, 0
        stw r3, 32751(r2)
        blr

instead of:

_test:
        li r2, 0
        stw r2, 32751(48693248)
        blr

Implement support for ppc64 as well, allowing it to produce better code.

llvm-svn: 34371
 2007-02-17 06:44:03 +00:00
Chris Lattner
14496ddfd4 Do not dereference invalid ranges. Generalize targetdata alignment model. 
This fixes the UnitTests/Vector/sumarray-dbl regressions.

llvm-svn: 34358
 2007-02-17 00:41:42 +00:00
Chris Lattner
09f6f520bf Fix CodeGen/PowerPC/2007-02-16-AlignPacked.ll 
llvm-svn: 34356
 2007-02-16 23:11:51 +00:00
Reid Spencer
b175f70613 Remove an unnecessary predicate. 
Patch by Scott Michel.

llvm-svn: 34354
 2007-02-16 22:42:40 +00:00
Chris Lattner
8dd1ed7465 simplify some code, ensure that packed structures get abi alignment of 1. 
llvm-svn: 34352
 2007-02-16 22:25:34 +00:00
Chris Lattner
3beba5539b fix incorrect encoding of vminsw. 
llvm-svn: 34351
 2007-02-16 21:20:09 +00:00
Andrew Lenharth
ed90594898 This was done recently 
llvm-svn: 34338
 2007-02-16 02:11:59 +00:00
Reid Spencer
c5814f843c For PR1195: 
PACKED_ALIGN -> VECTOR_ALIGN

llvm-svn: 34330
 2007-02-15 22:07:05 +00:00
Reid Spencer
af246fde76 For PR1202: 
Make sure we found an existing Alignment before overwriting it.

llvm-svn: 34308
 2007-02-15 18:34:36 +00:00
Evan Cheng
28eaad250f Use BitVector instead of vector<bool> which can be extremely slow. 
llvm-svn: 34302
 2007-02-15 05:59:24 +00:00
Reid Spencer
e7ff3305d6 For PR1195: 
Change use of "packed" term to "vector" in comments, strings, variable
names, etc.

llvm-svn: 34300
 2007-02-15 03:39:18 +00:00
Reid Spencer
55e4e98a2a For PR1195: 
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.

llvm-svn: 34293
 2007-02-15 02:26:10 +00:00
Reid Spencer
ca25d2b273 Fixed packed structure breakage from earlier TargetData patch; applied 
Chris Lattner's code style suggestions.

Patch by Scott Michel!

llvm-svn: 34292
 2007-02-15 02:11:06 +00:00
Chris Lattner
5cece73ec8 Generalize TargetData strings, to support more interesting forms of data. 
Patch by Scott Michel.

llvm-svn: 34266
 2007-02-14 05:52:17 +00:00
Andrew Lenharth
f4bbe64c83 Well this isn't as ugly and it works better. At least gcc bootstraps again 
llvm-svn: 34254
 2007-02-13 23:41:16 +00:00
Chris Lattner
67bdb3aae8 add a note 
llvm-svn: 34249
 2007-02-13 21:44:43 +00:00
Lauro Ramos Venancio
81f86314e6 Add space between // and the comment. 
llvm-svn: 34246
 2007-02-13 20:06:15 +00:00
Lauro Ramos Venancio
ff9f78e230 Add ABI information to ARM subtarget. 
llvm-svn: 34245
 2007-02-13 19:52:28 +00:00
Lauro Ramos Venancio
02ba8f20e3 According to ARM EABI, 8-bytes function arguments must be 8-bytes aligned. 
llvm-svn: 34241
 2007-02-13 14:07:13 +00:00
Chris Lattner
97739dcbca more notes 
llvm-svn: 34204
 2007-02-12 21:20:26 +00:00
Chris Lattner
216d889852 add a note 
llvm-svn: 34202
 2007-02-12 20:26:34 +00:00
Chris Lattner
d079b34aa0 Switch LayoutInfo to be a DenseMap instead of an std::map. This speeds up 
-load-vn -gcse by 2.3%.

llvm-svn: 34160
 2007-02-10 20:26:17 +00:00
Chris Lattner
8fa88af5f0 add a typedef 
llvm-svn: 34159
 2007-02-10 20:18:06 +00:00
Chris Lattner
863b62eb50 eliminate the std::vector from StructLayout, allocating the elements immediately 
after the StructLayout object in memory.  This marginally improves locality,
speeding up -load-vn -gcse by ~0.8%.

llvm-svn: 34158
 2007-02-10 20:15:41 +00:00
Chris Lattner
109373538b encapsulate the rest of the StructLayout members. 
llvm-svn: 34157
 2007-02-10 19:59:22 +00:00
Chris Lattner
9dafd9fe90 Privatize StructLayout::MemberOffsets, adding an accessor 
llvm-svn: 34156
 2007-02-10 19:55:17 +00:00
Chris Lattner
13b4f184fd Use ManagedStatic to manage LayoutInfo, instead of rolling our own. 
llvm-svn: 34154
 2007-02-10 19:43:18 +00:00
Chris Lattner
eaceeb61fb Change TargetData::getIndexedOffset interface to not require indices 
in a vector.

llvm-svn: 34153
 2007-02-10 19:33:15 +00:00
Evan Cheng
af3b119b29 These vectors are frequently large. Use std::vector instead. 
llvm-svn: 34109
 2007-02-09 23:59:14 +00:00
Evan Cheng
5e8eb0c198 Add reference counting to constantpool entries. Delete the unused ones. 
llvm-svn: 34105
 2007-02-09 20:54:44 +00:00
Chris Lattner
31e202922a add a note 
llvm-svn: 34101
 2007-02-09 17:38:01 +00:00
Nate Begeman
e7902cc8ba Remove fixed item 
llvm-svn: 34081
 2007-02-09 04:19:54 +00:00
Evan Cheng
400120abe5 This is done. 
llvm-svn: 34072
 2007-02-08 23:53:38 +00:00
Andrew Lenharth
fc510fe358 return addresses, those I already have 
llvm-svn: 34056
 2007-02-08 17:37:41 +00:00
Bill Wendling
4b33b03487 Fixed comments. 
llvm-svn: 34040
 2007-02-08 06:05:08 +00:00
Bill Wendling
289ab30051 Moved the MachOWriter and ELFWriter out of the Target/* files. Placed the 
definition of it into the CodeGen library. This is so that a backend doesn't
necessarily add in these writers if it doesn't use them (like in the lli
program).

llvm-svn: 34034
 2007-02-08 01:39:44 +00:00
Bill Wendling
1620ef9a95 Added new method to add a "simple" code emitter. That is, to only add 
the code emitter and not set variables.

llvm-svn: 34033
 2007-02-08 01:38:33 +00:00
Bill Wendling
abb65b1d4d Dead files. Functionality has been taken over by the Add*Writer functions. 
llvm-svn: 34029
 2007-02-08 01:32:51 +00:00
Evan Cheng
dc15bc54a4 isLowRegister() expects input is a physical register. 
llvm-svn: 34013
 2007-02-07 21:44:33 +00:00
Evan Cheng
03ffd4a6d5 Rename. 
llvm-svn: 34011
 2007-02-07 21:24:09 +00:00
Evan Cheng
2bbe03a4df If sp offset will be materialized in a register. Clear the offset field of str / ldr. 
llvm-svn: 34010
 2007-02-07 21:19:58 +00:00
Evan Cheng
fe7242e9bb Get rid of references to iostream. 
llvm-svn: 34009
 2007-02-07 21:18:32 +00:00
Evan Cheng
808cf2b6a1 New entry. 
llvm-svn: 34000
 2007-02-07 09:22:15 +00:00
Evan Cheng
d5921e8a32 In thumb mode, R3 is reserved, but it can be live in to the function. If 
that is the case, whenever we use it as a scratch register, save it to R12
first and then restore it after the use.
This is a temporary and truly horrible workaround!

llvm-svn: 33999
 2007-02-07 09:17:36 +00:00
Evan Cheng
8f5c613d03 Update 
llvm-svn: 33998
 2007-02-07 08:37:57 +00:00
Evan Cheng
efeb81a8c4 - If fp (r7) is used to reference stack objects, use [r, r] address mode. 
- If there is a dynamic alloca, in the epilogue, restore the value of sp
  using r7 - offset.
- Other bug fixes.

llvm-svn: 33997
 2007-02-07 08:37:31 +00:00
Evan Cheng
b6cdeca59d eliminateFrameIndex() is even more complicated if frame ptr is used instead of SP when there are dynamic alloca's. 
llvm-svn: 33975
 2007-02-07 02:44:23 +00:00
Evan Cheng
60bde0ebb1 Spill / restore should avoid modifying the condition register. 
llvm-svn: 33971
 2007-02-07 00:06:56 +00:00
Evan Cheng
b3ff5f65d4 Select add FI, c correctly. 
llvm-svn: 33960
 2007-02-06 09:11:20 +00:00
Evan Cheng
1f1a01403a foldMemoryOperand() cannot fold tMOVrr sp into load / store in thumb mode. tLDRspi / tSTRspi cannot target / store high registers. 
llvm-svn: 33958
 2007-02-06 06:13:29 +00:00
Evan Cheng
119b5e3558 eliminateFrameIndex() bug when frame pointer is used as base register. 
llvm-svn: 33945
 2007-02-06 00:23:31 +00:00
Evan Cheng
c4ba711e91 - Store val, [sp, c] must be selected to tSTRsp. 
- If c does not fit in the offset field, materialize sp + c into a register
  using tADDhirr.

llvm-svn: 33944
 2007-02-06 00:22:06 +00:00
Reid Spencer
4881e131eb Although targets are not required to support integers > 64bits, TargetData 
must in order for backends that do want to support large integer types to be
able to function. Consequently, don't assert if the bitwidth > 64 bits
when computing the size and alignment. Instead, compute the size by rounding
up to the next even number of bytes for the size. Compute the alignment
as the same as the LongABIAlignment. These provide reasonable defaults
that the target can override.

llvm-svn: 33943
 2007-02-05 23:51:43 +00:00
Reid Spencer
6af21b3029 For PR411: 
This patch replaces the SymbolTable class with ValueSymbolTable which does
not support types planes. This means that all symbol names in LLVM must now
be unique. The patch addresses the necessary changes to deal with this and
removes code no longer needed as a result. This completes the bulk of the
changes for this PR. Some cleanup patches will follow.

llvm-svn: 33918
 2007-02-05 20:47:22 +00:00
Chris Lattner
3e01807e87 Fix a miscompilation in the addr mode code trying to implement X | C and 
X + C to promote LEA formation.  We would incorrectly apply it in some cases
(test) and miss it in others.

This fixes CodeGen/X86/2007-02-04-OrAddrMode.ll

llvm-svn: 33884
 2007-02-04 20:18:17 +00:00
Evan Cheng
bf4ca3b491 ARM callseq_end should have a input flag operand so it would be scheduled right after the call. 
llvm-svn: 33832
 2007-02-03 09:11:58 +00:00
Evan Cheng
ece3d334c2 Fix comments. 
llvm-svn: 33831
 2007-02-03 08:53:01 +00:00
Bill Wendling
4423d49d94 Moved the GetTargetRelocation method from PPCMachOWriter to here. It uses 
non-Mach-O-specific information.

llvm-svn: 33819
 2007-02-03 02:41:58 +00:00
Bill Wendling
2831f1ae0d Moved the GetTargetRelocation method to the PPCMachOWriterInfo object. The 
PPCMachOWriter is now trivial.

llvm-svn: 33818
 2007-02-03 02:40:57 +00:00
Bill Wendling
ed60103206 Put destructor out-of-line. 
llvm-svn: 33817
 2007-02-03 02:40:10 +00:00
Evan Cheng
b4c6dfa3e7 - Branch max. displacement calculation bug. 
- Add debugging info.

llvm-svn: 33811
 2007-02-03 02:08:34 +00:00
Lauro Ramos Venancio
1b8a04e036 bugfix: SP isn't resetted when function has FP and there is no spills. 
llvm-svn: 33800
 2007-02-02 23:08:40 +00:00
Evan Cheng
d308af8c1f Another thumb large stack offset codegen bug. 
llvm-svn: 33795
 2007-02-02 21:08:39 +00:00
Evan Cheng
496c67ee3e Use MBB.empty() instead of MBB.size() for speed. 
llvm-svn: 33789
 2007-02-02 19:09:19 +00:00
Evan Cheng
6a428320d6 Watch out for empty BB. 
llvm-svn: 33788
 2007-02-02 18:49:02 +00:00
Evan Cheng
e450d1bfa4 Ugh. Only meant to do this in thumb mode. 
llvm-svn: 33780
 2007-02-02 08:58:48 +00:00
Chris Lattner
63479262b4 add a note 
llvm-svn: 33778
 2007-02-02 04:36:46 +00:00
Reid Spencer
591bfa1e0b Changes to support making the shift instructions be true BinaryOperators. 
This feature is needed in order to support shifts of more than 255 bits
on large integer types.  This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
   shl i32 %X, 1
instead of
   shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.

llvm-svn: 33776
 2007-02-02 02:16:23 +00:00
Evan Cheng
689b0a4a62 Fix a bug in getARMCMP (which translate CondCode to ARM specific CC) when the RHS is a constant. 
llvm-svn: 33775
 2007-02-02 01:53:26 +00:00
Evan Cheng
73975a6076 Thumb does not have clz. 
llvm-svn: 33773
 2007-02-01 23:34:03 +00:00
Lauro Ramos Venancio
5765bcd825 Define PrivateGlobalPrefix for ARM Linux. (Fix CodeGen/ARM/large_stack.ll) 
llvm-svn: 33763
 2007-02-01 21:43:53 +00:00
Evan Cheng
3d9b702988 Pasto. Lots of it. 
llvm-svn: 33762
 2007-02-01 20:44:52 +00:00
Lauro Ramos Venancio
5781691b22 Fix .thumb_func directive on linux. 
llvm-svn: 33759
 2007-02-01 18:25:34 +00:00
Jim Laskey
52a12383a4 Support for non-landing pad exception handling. 
llvm-svn: 33755
 2007-02-01 16:31:34 +00:00
Evan Cheng
88b703eec4 - Off by one bugs in maximum displacement calculation / testing. 
- In thumb mode, a new constpool island BB size should be 4 + 2 to
  compensate for the potential padding due to alignment requirement.

llvm-svn: 33753
 2007-02-01 10:16:15 +00:00
Anton Korobeynikov
c469cbc2e7 Fixed uninitialized stuff inside LegalizeDAG. Fortunately, the only 
affected part is codegen of "memove" inside x86 backend. This fixes
PR1144

llvm-svn: 33752
 2007-02-01 08:39:52 +00:00
Evan Cheng
d3dc2eefc2 .set pc relative displacement bug: label should be moved down one instruction 
to just before the add r1, pc:

Before:
        .set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
        mov r1, #PCRELV0
        add r1, pc

Now:
        .set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
        mov r1, #PCRELV0
LPCRELL0:
        add r1, pc

llvm-svn: 33744
 2007-02-01 03:04:49 +00:00
Evan Cheng
eafe1f7bd9 Add a note. 
llvm-svn: 33743
 2007-02-01 02:46:20 +00:00
Evan Cheng
9f177f9058 Also set alignment of stack-based structs to 4 in thumb mode. 
llvm-svn: 33741
 2007-02-01 02:18:36 +00:00
Evan Cheng
439dcbedba Special epilogue for vararg functions. We cannot do a pop to pc because 
there follows a sp increment for the va register save region. Instead issue
a separate pop to another register, increment sp, and then return:
        pop {r4, r5, r6, r7}
        pop {r3}
        add sp, #3 * 4
        bx r3

llvm-svn: 33739
 2007-02-01 01:49:46 +00:00
Evan Cheng
9f87fca49c Pessmistically assume the .align 2 before the first constpool entry adds 
two bytes padding.

llvm-svn: 33734
 2007-02-01 01:09:47 +00:00
Evan Cheng
3d8d381600 Possible JT improvements. 
llvm-svn: 33733
 2007-02-01 01:07:48 +00:00
Chris Lattner
f4e5c29cb9 Fix CodeGen/PowerPC/2007-01-31-InlineAsmAddrMode.ll 
llvm-svn: 33732
 2007-02-01 00:39:08 +00:00
Evan Cheng
54a1324bae Don't emit unnecessary .align directive. 
llvm-svn: 33729
 2007-01-31 23:39:39 +00:00
Evan Cheng
765de99fac Handle an interesting corner case: the constpool_entry being reference is two 
instructions away, i.e. its address is equal to PC.
        %r0 = tLDRpci <cp#0>
        bx
        CONSTPOOL_ENTRY 0 <cp#0>, 4

llvm-svn: 33728
 2007-01-31 23:35:18 +00:00
Evan Cheng
082e441207 Don't want to add FramePtr to callee save spill list twice. 
llvm-svn: 33727
 2007-01-31 23:17:29 +00:00
Evan Cheng
457d429cab Darwin ABI requires FP to point to stack slot of prev FP. 
llvm-svn: 33724
 2007-01-31 22:25:33 +00:00
Evan Cheng
0ce094c7a8 Add entry. 
llvm-svn: 33723
 2007-01-31 22:11:38 +00:00
Evan Cheng
41bee13a0e Thumb add sp, #imm requires the immediate value be multiple of 4. For now, 
change preferred alignment of short, byte, bool to 4.

llvm-svn: 33722
 2007-01-31 22:08:40 +00:00
Evan Cheng
476cd5c2d1 Update comment. 
llvm-svn: 33721
 2007-01-31 22:06:44 +00:00
Evan Cheng
8596afac45 Dead comment. 
llvm-svn: 33719
 2007-01-31 21:31:25 +00:00
Evan Cheng
a08ef111bb Thumb asm syntax does not want 's' suffix for flag setting opcodes. 
llvm-svn: 33717
 2007-01-31 20:12:31 +00:00
Evan Cheng
1df8529721 When determining whether a pc relative branch / load displacement fits in the 
instruction field, adjust it for PC value (4 for thumb, 8 for arm).

llvm-svn: 33711
 2007-01-31 19:57:44 +00:00
Chris Lattner
084d1d8706 A relatively simple PPC optimization. 
llvm-svn: 33709
 2007-01-31 19:49:20 +00:00
Evan Cheng
f6e0e6cada Some comments. 
llvm-svn: 33707
 2007-01-31 18:29:27 +00:00
Evan Cheng
16edf4f9bf ConstPool island bug: watch out for cases where UserMI is the last MI of the BB. 
llvm-svn: 33706
 2007-01-31 18:19:07 +00:00
Lauro Ramos Venancio
e22bc8635e ARM fix: Miscompilation when frame pointer can't be eliminated. Uninitialized frame pointer register is used. 
llvm-svn: 33703
 2007-01-31 13:12:46 +00:00
Evan Cheng
608ad034b0 Specify the right CC for comparison libcalls. 
llvm-svn: 33702
 2007-01-31 09:30:58 +00:00
Evan Cheng
e5f5439313 Observe -soft-float. 
llvm-svn: 33699
 2007-01-31 08:40:13 +00:00